docker相关命令--pull , commit ,save,load

docker

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 2017/04/23   Share

docker pull

1	docker pull <registry>:[:<port>]/[<namespace>/]<name>:<tag>

registry: 默认是dockerhub 也可以用其他的仓库地址 , 但是一般忽略协议(https://) , 比如grc.io , quary.io

一般分成3类:

sponsor registry: 第三方的registry 供客户和docker社区使用
mirror registry: 第三方registry 只让客户使用 , 比如阿里云
vendor registry: 由发布docker镜像的供应商提供的registry
private registry: 通过设有防火墙和安全层的私有实体提供的registry

namespace:

namespace	examples(/)
organization	redhat/kubernetes , google/
login(user name)	alics/application , bob/application
role	devel/database , test/database

docker容器制作

dockerfile
docker commit(基于docker容器制作)
autobulit dockerhub上自动构建

基于容器制作镜像

docker commit

1	docker commit [OPTIONS]CONTAINER[REPOSITORY[:TAG]]

Options

Name, shorthand	Default	Description
`--author , -a`		Author (e.g., “John Hannibal Smith hannibal@a-team.com”)
`--change , -c`		Apply Dockerfile instruction to the created image
`--message , -m`		Commit message
`--pause , -p`	`true`	Pause container during commit

Examples

Commit a container

$ docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS              NAMES
c3f279d17e0a        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            desperate_dubinsky
197387f1b436        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            focused_hamilton

$ docker commit c3f279d17e0a  svendowideit/testimage:version3

f5283438590d

$ docker images

REPOSITORY                        TAG                 ID                  CREATED             SIZE
svendowideit/testimage            version3            f5283438590d        16 seconds ago      335.7 MB

Commit a container with new configurations

$ docker ps

CONTAINER ID       IMAGE               COMMAND             CREATED             STATUS              PORTS              NAMES
c3f279d17e0a        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            desperate_dubinsky
197387f1b436        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            focused_hamilton

$ docker inspect -f "{{ .Config.Env }}" c3f279d17e0a

[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin]

$ docker commit --change "ENV DEBUG true" c3f279d17e0a  svendowideit/testimage:version3

f5283438590d

$ docker inspect -f "{{ .Config.Env }}" f5283438590d

[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin DEBUG=true]

Commit a container with new `CMD` and `EXPOSE` instructions

$ docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS              NAMES
c3f279d17e0a        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            desperate_dubinsky
197387f1b436        ubuntu:12.04        /bin/bash           7 days ago          Up 25 hours                            focused_hamilton

$ docker commit --change='CMD ["apachectl", "-DFOREGROUND"]' -c "EXPOSE 80" c3f279d17e0a  svendowideit/testimage:version4

f5283438590d

$ docker run -d svendowideit/testimage:version4

89373736e2e7f00bc149bd783073ac43d0507da250e999f3f1036e0db60817c0

$ docker ps

CONTAINER ID        IMAGE               COMMAND                 CREATED             STATUS              PORTS              NAMES
89373736e2e7        testimage:version4  "apachectl -DFOREGROU"  3 seconds ago       Up 2 seconds        80/tcp             distracted_fermat
c3f279d17e0a        ubuntu:12.04        /bin/bash               7 days ago          Up 25 hours                            desperate_dubinsky
197387f1b436        ubuntu:12.04        /bin/bash               7 days ago          Up 25 hours

容器的导入和导出

docker save

Usage

1	docker save [OPTIONS] IMAGE [IMAGE...]

Options

Name, shorthand	Default	Description
`--output , -o`		Write to a file, instead of STDOUT

Examples

Create a backup that can then be used with `docker load`.

$ docker save busybox > busybox.tar

$ ls -sh busybox.tar

2.7M busybox.tar

$ docker save --output busybox.tar busybox

$ ls -sh busybox.tar

2.7M busybox.tar

$ docker save -o fedora-all.tar fedora

$ docker save -o fedora-latest.tar fedora:latest

docker load

Usage

1	docker load [OPTIONS]

Options

Name, shorthand	Default	Description
`--input , -i`		Read from tar archive file, instead of STDIN
`--quiet , -q`		Suppress the load output

Examples

$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

$ docker load < busybox.tar.gz

Loaded image: busybox:latest
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
busybox             latest              769b9341d937        7 weeks ago         2.489 MB

$ docker load --input fedora.tar

Loaded image: fedora:rawhide

Loaded image: fedora:20

$ docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
busybox             latest              769b9341d937        7 weeks ago         2.489 MB
fedora              rawhide             0d20aec6529d        7 weeks ago         387 MB
fedora              20                  58394af37342        7 weeks ago         385.5 MB
fedora              heisenbug           58394af37342        7 weeks ago         385.5 MB
fedora              latest              58394af37342        7 weeks ago         385.5 MB